[RS6000] PR 40473, parameter debug location lists

Alan Modra amodra@bigpond.net.au
Mon Sep 21 23:24:00 GMT 2009


On Mon, Sep 21, 2009 at 11:54:29AM -0400, David Edelsohn wrote:
> If the call to final() is changed to emit_insn_before_noloc(), then
> the instructions no longer are emitted and instead are generated as
> part of the function, which means they are scheduled.  Your patch
> seems to make the -mno-sched-prolog flag useless.

No, we are well past scheduling.   rs6000_output_function_prologue is
called from rest_of_handle_final via final_start_function.

> -mno-sched-prolog is an alias for -mno-sched-epilog.  Is there a
> continuing need to allow the prologue and epilogue not to be
> scheduled?

I don't really know, but I suspect the answer is "yes".  We do know
people are still using the option..  See
http://sourceware.org/bugzilla/show_bug.cgi?id=10231

-- 
Alan Modra
Australia Development Lab, IBM



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